Improvement in soudering-furnaces



tarnish' %iiite5 ooNnAD seinen or enEnN roiN'r,

ASSIGNOR TO HIMSELF AND J. HER- BERT ROHARDSON, OF BROOKLYN, NEW YORK.

Letters Patent No. 113,803, dated April 18, 1871.

IMPROVEMENT IN SOLDERlNG-FURNACES..

The Schedule :eier-red to in these Letters Patent and making part of the same.

To all whom 'it may con/cern:

Bc it known that I, CONRAD SEIMEL, oi' Groen Point,-in the county of Kings and State of New York, have invented a new and improved Coke-Fur nace for Heating Soldering-Irons; and l do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art toA malte and use the same, reference being had to the accompanying drawing forming part of this specilcation.

Figure l represents a vertical central section of my improved coke-furnace taken on the plane ofthe line x x, iig. 2.

Figure L is a plan or top view of the same, show-- ing it without a cover.

Similar letters of reference indicate corresponding parts. l

This invention has for its object to furnish a substitute for the portable charcoa1-stoves now used by plumbers, roofers, and others for heating soldering# irons and similar purposes, so that in place of the expensive charcoal the cheaper coke can be employed with equal effect. The invention consists in the arrangement of a furnace having a grate and a peculiar draught apparatus adapted to the peculiarities of coke. By enabling the use of coke in place. of charcoal a very considerable outlay for fuel will be economized, and the danger of iire, so imminent with rapidly-consuming charcoal, to a great extent avoided.

A in the drawing represents the bodyof my iinproved coked'urnace. lt is made of truncated, conical, or other suitable form, of sheet metal, or other material. If made 'of sheet metal, as shown, I prefer to make its sides, a b, double, and interpose cement c or other non-Conductor of heat between the two thicknesses.

A grate, Ll, placed within the furnace, above the bottom e of the saine, creating thereby a fire-place, f, above and an ash and air-chamber, g, below said grat-e.

A door or slide, 71, for regulating the draught is applied to the lower chamber g.

From the upper part of the furnace projects the smokepipe t, which is provided with a damper, j. This damper j is in line with the inner lining b, as shown.

A portion, le, ofthe space between a and b, around the dalnperj, is not filled with cement, and is open on top, so that whenever said damper is closed to the `due i the said space la will be4 open to receive the smoke from above and conduct it to the tine outside of the damper. A limited draughtcan thus be provided, when the coke is to be lett smoldering, but not hot enough for heating soldering-irons.

The space k can, however, also be closed frornabove by a horizontal slide, l, resting in an annular groove which is formed between a and l) inthe upper part of the furnace.

Then the damper j and the slide Z are both closed the draught is entirely interrupted.

B is the cover ofthe furnace, closing its upper end. This cover may have a pin or pins, m, project into the slide Z, or vice versa, so that by turning it the slide will be moved for opening or shutting the "space la.

In case the furnace is made of cement altogether, or otherwise of a single thickness, the space k is produced around the fine t' by an extra plate of metal secured within the furnace.

An opening, n, is provided through the side of the furnace, and a drop-door, o, for closing it in front of the same.

The soldering-iron to be heated is introduced under the drop-door through the opening n, so that the iron will reach the fire within the furnace.

Having thus described my invention,

I claim as new and desire to secure by Letters Patent- The coke-furnace A, provided with the grate d, .damper j, air-space k, and slide Z, all arranged and `combined substantially as herein shown and described.

CONRAD SEIMEL. Witnesses:

GEO. W. MABEE, T. B. MosHnR. 

